Reverso offers you access to an English definition and synonym dictionary for to prop the sunglasses up [on one's head] and thousands of other words. You can complete the definition of to prop the sunglasses up [on one's head] given by the English - Definition dictionary by looking at other English dictionaries : Wikipedia, Lexilogos, Oxford, Cambridge, Chambers Harrap, Wordreference, Collins Lexibase dictionaries, Merriam Webster ...